Wristwatch



FIG. 1 is a perspective view of a wristwatch showing my new design;

FIG. 2 shows a top plan view thereof;

FIG. 3 shows a bottom plan view thereof;

FIG. 4 shows a front elevational view thereof;

FIG. 5 shows a rear elevational view thereof;

FIG. 6 shows a right side elevational view thereof; and,

FIG. 7 shows a left side elevational view thereof. 

The ornamental design for a wristwatch, as shown. 